package com.sdry.utils;


import java.security.MessageDigest;


/**
 * md5加密处理
 * 
 * @author Administrator
 * 
 */
public class MD5 {

	public static String md5Encode(String inStr) {

		 MessageDigest md5 = null;
	        StringBuffer hexValue = new StringBuffer();
	        
	        try {
	            md5 = MessageDigest.getInstance("MD5");
	            
	            byte[] byteArray = inStr.getBytes("UTF-8");
	            byte[] md5Bytes = md5.digest(byteArray);
	            
	            for (int i = 0; i < md5Bytes.length; i++) {
	                int val = ((int) md5Bytes[i]) & 0xff;
	                if (val < 16) {
	                    hexValue.append("0");
	                }
	                hexValue.append(Integer.toHexString(val));
	            }
	        } catch (Exception e) {
	            e.printStackTrace();
	            return "";
	        }  
	        
	        return hexValue.toString();

	}

	/**
	 * 测试主函数
	 * 
	 * @param args
	 * @throws Exception
	 */
	public static void main(String args[]) {
		String strs = new String("123");
		System.out.println("原始：" + strs);
		System.out.println("MD5后：" + md5Encode(strs));
	}
}
